Harmonic Frequency Enhanced Direction of Arrival Estimation Using Non-Uniform Linear Arrays

被引：1

作者：

Niu, Ruizhi ^{[1
]}

Zhang, Zhenyu ^{[1
]}

机构：

[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 1H9, Canada

来源：

IEEE ACCESS | 2024年 / 12卷

关键词：

Direction-of-arrival estimation; Harmonic analysis; Simulation; Estimation; Linear arrays; Array aperture; coprime arrays; coprime arrays with compressed inter-element spacing (CACIS); direction of arrival (DOA) estimation; degrees of freedom (DOFs); harmonic frequencies; nested arrays; non-uniform linear arrays (NULAs); sensor count reduction; simulation results;

D O I：

10.1109/ACCESS.2024.3373462

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This article introduces an innovative method to improve the accuracy of estimating the Direction of Arrival (DOA) by utilizing non-uniform linear arrays (NULAs) operating at harmonic frequencies. Common DOA techniques face challenges in maintaining sufficient degrees of freedom (DOFs) while minimizing the number of sensors. Our approach takes advantage of the extended array aperture of NULAs and the diverse frequencies involved in harmonics to address these challenges. We explore various NULA structures, such as nested arrays, coprime arrays, and coprime arrays with compressed inter-element spacing (CACIS), each with unique characteristics and requirements for enhancing DOFs at the third and fifth harmonics. Simulation results demonstrate a substantial increase in DOFs, emphasizing the effectiveness and adaptability of our method in improving DOA estimation across different NULA configurations. This research contributes not only to theoretical advancements in antenna array processing but also offers practical insights, showcasing the potential of our method to significantly enhance DOA estimation accuracy in complex signal environments.

引用

页码：36942 / 36950

页数：9

共 24 条

[1] High-Precision OMP-Based Direction of Arrival Estimation Scheme for Hybrid Non-Uniform Array [J].

Aghababaiyan, Keyvan ;

Shah-Mansouri, Vahid ;

Maham, Behrouz .

IEEE COMMUNICATIONS LETTERS, 2020, 24 (02) :354-357

[2] 3D-OMP and 3D-FOMP algorithms for DOA estimation [J].

Aghababaiyan, Keyvan ;

Zefreh, Reza Ghaderi ;

Shah-Mansouri, Vahid .

PHYSICAL COMMUNICATION, 2018, 31 :87-95

[3]

Benesty J. Chen, 2008, Springer Topics in Signal Processing), V1, P115

[4] Multi-Frequency Co-Prime Arrays for High-Resolution Direction-of-Arrival Estimation [J].

BouDaher, Elie ;

Jia, Yong ;

Ahmad, Fauzia ;

Amin, Moeness G. .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2015, 63 (14) :3797-3808

[5] FOMP algorithm for Direction of Arrival estimation [J].

Dehghani, Maryam ;

Aghababaiyan, Keyvan .

PHYSICAL COMMUNICATION, 2018, 26 :170-174

[6] A note on most favorable array geometries for DOA estimation and array interpolation [J].

Gershman, AB ;

Bohme, JF .

IEEE SIGNAL PROCESSING LETTERS, 1997, 4 (08) :232-235

[7] THE UNIFYING ROLE OF THE COARRAY IN APERTURE SYNTHESIS FOR COHERENT AND INCOHERENT IMAGING [J].

HOCTOR, RT ;

KASSAM, SA .

PROCEEDINGS OF THE IEEE, 1990, 78 (04) :735-752

[8]

Huang PC, 2021, 2020 INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION (ISAP), P443, DOI 10.23919/ISAP47053.2021.9391298

[9]

Jadon K. P., 2023, S adhan a, V48

[10] Two decades of array signal processing research - The parametric approach [J].

Krim, H ;

Viberg, M .

IEEE SIGNAL PROCESSING MAGAZINE, 1996, 13 (04) :67-94

← 1 2 3 →